From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
kvmarm@lists.cs.columbia.edu, james.morse@arm.com,
marc.zyngier@arm.com, cdall@kernel.org, eric.auger@redhat.com,
julien.grall@arm.com, will.deacon@arm.com,
catalin.marinas@arm.com, punit.agrawal@arm.com,
qemu-devel@nongnu.org, Suzuki K Poulose <suzuki.poulose@arm.com>
Subject: [PATCH v3 05/20] kvm: arm/arm64: Fix stage2_flush_memslot for 4 level page table
Date: Fri, 29 Jun 2018 12:15:25 +0100 [thread overview]
Message-ID: <1530270944-11351-6-git-send-email-suzuki.poulose@arm.com> (raw)
In-Reply-To: <1530270944-11351-1-git-send-email-suzuki.poulose@arm.com>
So far we have only supported 3 level page table with fixed IPA of 40bits.
Fix stage2_flush_memslot() to accommodate for 4 level tables.
Cc: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <cdall@kernel.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
---
virt/kvm/arm/mmu.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index 1d90d79..061e6b3 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -379,7 +379,8 @@ static void stage2_flush_memslot(struct kvm *kvm,
pgd = kvm->arch.pgd + stage2_pgd_index(addr);
do {
next = stage2_pgd_addr_end(addr, end);
- stage2_flush_puds(kvm, pgd, addr, next);
+ if (!stage2_pgd_none(*pgd))
+ stage2_flush_puds(kvm, pgd, addr, next);
} while (pgd++, addr = next, addr != end);
}
--
2.7.4
next prev parent reply other threads:[~2018-06-29 11:24 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-29 11:15 [PATCH v3 00/20] arm64: Dynamic & 52bit IPA support Suzuki K Poulose
2018-06-29 11:15 ` [PATCH v3 01/20] virtio: mmio-v1: Validate queue PFN Suzuki K Poulose
2018-06-29 17:42 ` Michael S. Tsirkin
2018-07-03 8:04 ` Suzuki K Poulose
2018-07-04 5:37 ` Michael S. Tsirkin
2018-06-29 11:15 ` [PATCH v3 02/20] virtio: pci-legacy: Validate queue pfn Suzuki K Poulose
2018-06-29 17:42 ` Michael S. Tsirkin
2018-06-29 11:15 ` [PATCH v3 03/20] arm64: Add a helper for PARange to physical shift conversion Suzuki K Poulose
2018-06-29 14:50 ` Auger Eric
2018-06-29 11:15 ` [PATCH v3 04/20] kvm: arm64: Clean up VTCR_EL2 initialisation Suzuki K Poulose
2018-06-29 14:50 ` Auger Eric
2018-06-29 11:15 ` Suzuki K Poulose [this message]
2018-06-29 14:50 ` [PATCH v3 05/20] kvm: arm/arm64: Fix stage2_flush_memslot for 4 level page table Auger Eric
2018-07-02 9:59 ` Marc Zyngier
2018-06-29 11:15 ` [PATCH v3 06/20] kvm: arm/arm64: Remove spurious WARN_ON Suzuki K Poulose
2018-06-29 14:51 ` Auger Eric
2018-07-02 10:01 ` Marc Zyngier
2018-06-29 11:15 ` [PATCH v3 07/20] kvm: arm/arm64: Prepare for VM specific stage2 translations Suzuki K Poulose
2018-07-02 10:12 ` Marc Zyngier
2018-07-02 10:25 ` Suzuki K Poulose
2018-07-02 10:51 ` Auger Eric
2018-07-02 10:59 ` Suzuki K Poulose
2018-06-29 11:15 ` [PATCH v3 08/20] kvm: arm/arm64: Abstract stage2 pgd table allocation Suzuki K Poulose
2018-07-02 15:01 ` Auger Eric
2018-06-29 11:15 ` [PATCH v3 09/20] kvm: arm64: Make stage2 page table layout dynamic Suzuki K Poulose
2018-07-02 10:57 ` Suzuki K Poulose
2018-07-02 12:14 ` Auger Eric
2018-07-02 13:24 ` Suzuki K Poulose
2018-07-02 14:46 ` [Qemu-devel] " Auger Eric
2018-06-29 11:15 ` [PATCH v3 10/20] kvm: arm64: Dynamic configuration of VTTBR mask Suzuki K Poulose
2018-07-02 14:41 ` Auger Eric
2018-07-03 11:54 ` Suzuki K Poulose
2018-07-04 8:24 ` Auger Eric
2018-07-04 8:29 ` Suzuki K Poulose
2018-06-29 11:15 ` [PATCH v3 11/20] kvm: arm64: Helper for computing VTCR_EL2.SL0 Suzuki K Poulose
2018-07-02 14:59 ` Auger Eric
2018-06-29 11:15 ` [PATCH v3 12/20] kvm: arm64: Add helper for loading the stage2 setting for a VM Suzuki K Poulose
2018-07-02 19:13 ` Auger Eric
2018-06-29 11:15 ` [PATCH v3 13/20] kvm: arm64: Configure VTCR per VM Suzuki K Poulose
2018-07-02 12:16 ` Marc Zyngier
2018-07-03 10:48 ` Suzuki K Poulose
2018-07-03 10:58 ` Marc Zyngier
2018-06-29 11:15 ` [PATCH v3 14/20] kvm: arm/arm64: Expose supported physical address limit for VM Suzuki K Poulose
2018-06-29 11:15 ` [PATCH v3 15/20] kvm: arm/arm64: Allow tuning the physical address size " Suzuki K Poulose
2018-07-02 13:13 ` Marc Zyngier
2018-07-02 13:31 ` Suzuki K Poulose
2018-07-04 15:51 ` Will Deacon
2018-07-04 22:03 ` Suzuki K Poulose
2018-07-06 13:49 ` Suzuki K Poulose
2018-07-06 15:09 ` Marc Zyngier
2018-07-06 16:39 ` Suzuki K Poulose
2018-07-09 11:23 ` Dave Martin
2018-07-09 12:29 ` Marc Zyngier
2018-07-09 13:37 ` Dave Martin
2018-07-10 16:38 ` Suzuki K Poulose
2018-07-10 17:03 ` Dave Martin
2018-07-11 9:05 ` Suzuki K Poulose
2018-07-11 10:38 ` Dave Martin
2018-06-29 11:15 ` [PATCH v3 16/20] kvm: arm64: Switch to per VM IPA limit Suzuki K Poulose
2018-07-02 13:32 ` Marc Zyngier
2018-07-02 13:53 ` Suzuki K Poulose
2018-06-29 11:15 ` [PATCH v3 17/20] vgic: Add support for 52bit guest physical address Suzuki K Poulose
2018-07-04 8:09 ` Auger Eric
2018-06-29 11:15 ` [PATCH v3 18/20] kvm: arm64: Add support for handling 52bit IPA Suzuki K Poulose
2018-07-02 13:43 ` Marc Zyngier
2018-06-29 11:15 ` [PATCH v3 19/20] kvm: arm64: Allow IPA size supported by the system Suzuki K Poulose
2018-07-02 13:50 ` Marc Zyngier
2018-07-02 13:54 ` Suzuki K Poulose
2018-06-29 11:15 ` [PATCH v3 20/20] kvm: arm64: Fall back to normal stage2 entry level Suzuki K Poulose
2018-06-29 11:15 ` [kvmtool test PATCH 21/24] kvmtool: Allow backends to run checks on the KVM device fd Suzuki K Poulose
2018-06-29 11:15 ` [kvmtool test PATCH 22/24] kvmtool: arm64: Add support for guest physical address size Suzuki K Poulose
2018-07-04 14:09 ` Will Deacon
2018-07-04 15:00 ` Julien Grall
2018-07-04 15:52 ` Will Deacon
2018-07-05 12:47 ` Julien Grall
2018-07-05 13:20 ` Marc Zyngier
2018-07-05 13:46 ` Auger Eric
2018-07-05 14:12 ` Suzuki K Poulose
2018-07-05 14:15 ` Marc Zyngier
2018-07-05 14:37 ` Auger Eric
2018-06-29 11:15 ` [kvmtool test PATCH 23/24] kvmtool: arm64: Switch memory layout Suzuki K Poulose
2018-06-29 11:15 ` [kvmtool test PATCH 24/24] kvmtool: arm: Add support for creating VM with PA size Suzuki K Poulose
2018-07-04 14:22 ` Will Deacon
2018-07-04 14:41 ` Marc Zyngier
2018-07-04 15:51 ` Will Deacon
2018-07-05 7:51 ` Peter Maydell
2018-07-05 7:58 ` Auger Eric
2018-07-04 15:58 ` Suzuki K Poulose
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